/**
 * Copyright 2006 gworks.com.au
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. (http://www.apache.org/licenses/LICENSE-2.0)
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
 * the specific language governing permissions and limitations under the License.
 *
 * <dhamma-message src="Atisha (11th century Tibetan Buddhist master)">
 * 	The greatest achievement is selflessness. The greatest worth is self-mastery.
 * 	The greatest quality is seeking to serve others. The greatest precept is continual awareness.
 * 	The greatest medicine is the emptiness of everything. The greatest action is not conforming with the worlds ways.
 * 	The greatest magic is transmuting the passions. The greatest generosity is non-attachment.
 * 	The greatest goodness is a peaceful mind. The greatest patience is humility.
 * 	The greatest effort is not concerned with results. The greatest meditation is a mind that lets go.
 * 	The greatest wisdom is seeing through appearances. 
 * </dhamma-message>
 */
package org.javaongems.client.stdctrls;

import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.ClickListenerCollection;
import com.google.gwt.user.client.ui.MouseListener;
import com.google.gwt.user.client.ui.MouseListenerCollection;
import com.google.gwt.user.client.ui.Widget;

/**
 * <p>Provides span widget features in a similar fashion to HtmlDiv.</p>
 * @author Ashin Wimalajeewa (ash)
 */
public class HtmlSpan extends Widget {
	protected Element span;

	protected ClickListenerCollection clickListeners;

	protected MouseListenerCollection mouseListeners;

	public HtmlSpan() {
		span = DOM.createElement("span");
		setElement(span);
		sinkEvents(Event.ONCLICK | Event.MOUSEEVENTS);
		setStyleName("gems-HtmlSpan");
	}

	public HtmlSpan(String html) {
		this();
		setHtml(html);
	}

	public void setHtml(String html) {
		DOM.setInnerHTML(span, html);
	}

	public String getHtml() {
		return DOM.getInnerHTML(span);
	}

	public void setWordWrap(boolean wrap) {
		DOM.setStyleAttribute(getElement(), "whiteSpace", wrap ? "normal"
				: "nowrap");
	}

	public void addClickListener(ClickListener listener) {
		if (clickListeners == null)
			clickListeners = new ClickListenerCollection();
		clickListeners.add(listener);
	}

	public void addMouseListener(MouseListener listener) {
		if (mouseListeners == null)
			mouseListeners = new MouseListenerCollection();
		mouseListeners.add(listener);
	}

	public void removeClickListener(ClickListener listener) {
		if (clickListeners != null)
			clickListeners.remove(listener);
	}

	public void removeMouseListener(MouseListener listener) {
		if (mouseListeners != null)
			mouseListeners.remove(listener);
	}

	public void onBrowserEvent(Event event) {
		switch (DOM.eventGetType(event)) {
		case Event.ONCLICK:
			if (clickListeners != null)
				clickListeners.fireClick(this);
			break;

		case Event.ONMOUSEDOWN:
		case Event.ONMOUSEUP:
		case Event.ONMOUSEMOVE:
		case Event.ONMOUSEOVER:
		case Event.ONMOUSEOUT:
			if (mouseListeners != null)
				mouseListeners.fireMouseEvent(this, event);
			break;
		}
	}
}